A mother and her 12-year-old daughter celebrating a birthday at a popular restaurant in Oklahoma City were shot Thursday night around 6:30 p.m. by a man in his late teens, when a bystander armed with a pistol confronted the shooter and fatally shot him as he tried to flee, according to Oklahoma City Police - who called the citizen "a blessing."

Capt. Mathews says when the suspect exited the restaurant, he was confronted by a citizen who took out his own firearm, shooting and killing the suspect. -News9

Natalie and her daughter Niah Will were walking into Louie's Grill & Bar to celebrate the woman's eldest daughter Shayla's 14th birthday when they were shot by a man said to be an 18 to 20-year-old white male wearing eye glasses and ear protection. Natalie was shot in the arm, while 12-year-old Niah was shot in her tailbone - the bullet traveling to her stomach. Shayla's best friend, 14-year-old Alex, was also shot.

"To the good Samaritan that killed that monster I want to meet you and shake your hand and tell you face to face thank you for saving my daughter's and everyone else in that restaurants life. You are my hero sir," wrote Niah's father, Jabari Giles, over Facebook.